PFAS ("forever chemicals")
Perfluorododecanoic acid (PFDoA) in U.S. tap water
29 public water systems across 11 U.S. states report Perfluorododecanoic acid (PFDoA) in their annual Consumer Confidence Report. None currently sit at or above the federal limit.
What it is
Perfluorododecanoic acid, a longer-chain PFAS 'forever chemical.'
Why it's regulated
Monitored under EPA rules; persistent and bioaccumulative.
Within the federal limit (28)
| Water system | Measured |
|---|---|
| Boonsboro Keedysville, MD 2024 annual report | 307–1 |
| Albuquerque, NM 2024 annual report | Not detected |
| Brown Deer, WI 2024 annual report | Not detected ug/L |
| Butler, WI 2024 annual report | Not detected ug/L |
| Calvert Manor, MD 2024 annual report | Not detected |
| Chandler, AZ 2024 annual report | 0 ng/L |
| Dallas, TX 2024 annual report | Not detected ng/L |
| Dearborn, MI 2024 annual report | Not detected ug/L |
| Franklin, WI 2024 annual report | Not detected ug/L |
| Greendale, WI 2024 annual report | Not detected ug/L |
| Greenfield, WI 2024 annual report | Not detected ug/L |
| Hales Corners, WI 2024 annual report | Not detected ug/L |
| Menomonee Falls, WI 2024 annual report | Not detected ug/L |
| Mequon, WI 2024 annual report | Not detected ug/L |
| Milwaukee, WI 2024 annual report | Not detected ug/L |
| New Berlin, WI 2024 annual report | Not detected ug/L |
| Pasadena, CA 2023 annual report | Not detected ug/L |
| Salem, OR 2023 annual report | Not detected ug/L |
| Santa Clarita, CA 2024 annual report | Not detected ug/L |
| Shorewood, WI 2024 annual report | Not detected ug/L |
| St. Francis, WI 2024 annual report | Not detected ug/L |
| Thiensville, WI 2024 annual report | Not detected ug/L |
| Tracy, CA 2024 annual report | Not detected |
| Waukesha, WI 2024 annual report | Not detected ug/L |
| Wauwatosa, WI 2024 annual report | Not detected ug/L |
| West Allis, WI 2024 annual report | Not detected ug/L |
| West Valley City, UT 2024 annual report | Not detected ug/L |
| Wilmington, NC 2024 annual report | Not detected ng/L |
Frequently asked
+What is Perfluorododecanoic acid (PFDoA)?
Perfluorododecanoic acid, a longer-chain PFAS 'forever chemical.' Monitored under EPA rules; persistent and bioaccumulative.
+What is the federal limit for Perfluorododecanoic acid (PFDoA) in drinking water?
The federal MCL for Perfluorododecanoic acid (PFDoA) is 1.8 . The EPA enforces this against the regulated reporting statistic (typically a running annual average or 90th percentile), not a single-sample spike.
+How many U.S. water systems have Perfluorododecanoic acid (PFDoA) over the federal limit?
Zero of the 29 public water systems in The Water Map dataset currently report Perfluorododecanoic acid (PFDoA) at or above its federal limit.
+How can I check if Perfluorododecanoic acid (PFDoA) is in my city's tap water?
Search your city on The Water Map (https://www.thewatermap.com/) or browse the list on this page. Every U.S. public water utility is required to publish an annual Consumer Confidence Report that lists every contaminant it measured, including Perfluorododecanoic acid (PFDoA).
See Perfluorododecanoic acid (PFDoA) on the map
Color-coded by status across the whole country.
Open the map →